package io.github.tesla.ops.common;

import java.lang.reflect.Method;
import java.util.Date;

import javax.servlet.http.HttpServletRequest;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import io.github.tesla.ops.system.dao.LogDao;
import io.github.tesla.ops.system.domain.LogDO;
import io.github.tesla.ops.utils.HttpContextUtils;
import io.github.tesla.ops.utils.IPUtils;
import io.github.tesla.ops.utils.JSONUtils;

@Aspect
@Component
public class LogAspect {
  @Autowired
  LogDao logMapper;

  @Pointcut("@annotation(io.github.tesla.ops.common.Log)")
  public void logPointCut() {}

  @Around("logPointCut()")
  public Object around(ProceedingJoinPoint point) throws Throwable {
    long beginTime = System.currentTimeMillis();
    // 执行方法
    Object result = point.proceed();
    // 执行时长(毫秒)
    long time = System.currentTimeMillis() - beginTime;
    // 保存日志
    saveLog(point, time);
    return result;
  }

  private void saveLog(ProceedingJoinPoint joinPoint, long time) {
    MethodSignature signature = (MethodSignature) joinPoint.getSignature();
    Method method = signature.getMethod();
    LogDO sysLog = new LogDO();
    Log syslog = method.getAnnotation(Log.class);
    if (syslog != null) {
      // 注解上的描述
      sysLog.setOperation(syslog.value());
    }
    // 请求的方法名
    String className = joinPoint.getTarget().getClass().getName();
    String methodName = signature.getName();
    sysLog.setMethod(className + "." + methodName + "()");
    // 请求的参数
    Object[] args = joinPoint.getArgs();
    try {
      String params = JSONUtils.beanToJson(args[0]).substring(0, 4999);
      sysLog.setParams(params);
    } catch (Exception e) {

    }
    // 获取request
    HttpServletRequest request = HttpContextUtils.getHttpServletRequest();
    // 设置IP地址
    sysLog.setIp(IPUtils.getIpAddr(request));
    // 用户名
    Long currentUserId = BaseController.getUserId();
    String currentUserName = BaseController.getUsername();
    if (null == currentUserId) {
      if (null != sysLog.getParams()) {
        sysLog.setUserId(-1L);
        sysLog.setUsername(sysLog.getParams());
      } else {
        sysLog.setUserId(-1L);
        sysLog.setUsername("获取用户信息为空");
      }
    } else {
      sysLog.setUserId(currentUserId);
      sysLog.setUsername(currentUserName);
    }
    sysLog.setTime((int) time);
    // 系统当前时间
    Date date = new Date();
    sysLog.setGmtCreate(date);
    // 保存系统日志
    logMapper.save(sysLog);
  }
}
